If by that you mean where they get their own oxygen, then from nowhere because red blood cells do not need oxygen, they perform all reactions anaerobically.
If you mean where they get it to give off for the rest of your body, then its from the lungs.
Oxygen is transported with the help of Red blood cells as the red blood cells contain haemoglobin to can carry oxygen from one place to another.
The red blood cells carry the oxygen in blood.
red blood cells
Oxygen moves through your red blood cells.
Oxygen is needed for respiration. This is how all our cells release energy. All the body cells and white blood cells therefore need oxygen. Red blood cells don't use oxygen, they undergo anaerobic respiration, but they transport the oxygen needed by other cells.
Red blood cells contain hemoglobin. These cells are also known as erythrocytes.
red blood cells
red blood cells transport oxygen :)
Red blood cells carry primarily oxygen
Hemoglobin is a metalloprotein, containing iron, that is within red blood cells and binds to gasses like oxygen in order to transport those gasses in the blood.
Red blood cells transport oxygen in the blood.
Your red blood cells carry oxygen.
The hemoglobin molecule in red blood cells are responsible for transporting oxygen.
oxygen is carried in red blood cells
Red blood cells carry oxygen to all the cells of the body.
ways of transporting oxygen (presumably in the human body you are referring to) it is carried in the blood as part of the circulatory system-it is picked up from the lungs through alveoli -majorly carried in the blood as oxyhaemoglobin (oxygen combined with haemoglobin in red blood cells) -some can be dissolved in the blood plasma
Red blood cells carry oxygen to the body cells.